1 Explain that a population pyramid shows the age and sex structure of a population. 2  Point to the horizontal bars, which show the percentage (or the absolute number) of males and females in each age group. 3  Have students interpret the chart.
1 Although they range from $150-$400 or more, a large capacity (25-70 pints) dehumidifier for a basement (the dampest portion of most homes) or other large area averages $200-$300.
How to choose Dehumidifier Size. The size of a dehumidifier does not depend on how tall or how weight it is. The total capacity has determined to remove moisture in 24 hours period, and calculated by pints. For example, a 30 pint dehumidifier can remove 30 pints of moisture per day.